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Rus_ich [418]
3 years ago
14

Which was an idea used to dispute the theory of plate tectonics?

Biology
2 answers:
Dominik [7]3 years ago
7 0
D . Because it it was a theory and mammoths travels to us with that bridge it was really just based of a theory
umka2103 [35]3 years ago
5 0

Answer:

option d is correct. the existence of land bridges between continents.

Explanation:

landland bridge theory which was used to explain why species would end up continents over, such as mammoth travelling to North America, thisthis theory was based on the idea that water eventually Rose to cover these bridges rather than the at having individual plates that moved away from each other.

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All eukaryotic cells are multicelular?<br> True<br> False
noname [10]

Answer:

Uhhhh false, multicellular means a living thing made up of two or more cells soooooooooo...

Explanation:

6 0
3 years ago
Why does a euglena has a flagellum that allows it to move?
Artist 52 [7]
Euglena move from one place to another like an animal. When they manufacture their own food, they have to move to such an area where they can receive required amount of sunlight. There are two features on its body that facilitate in its movement. The most important is the flagellum, which is a long whip-like appendage attached to the body. It turns and twists in the water in order to push the body through the water. The other physical feature that plays a vital role in giving a sense of direction to its movement is the eyespot, also located at the anterior of its body. It is a light-sensitive, pigmented organelle which is capable of detecting sunlight. Thus, it orients the movement towards the direction of light, where they can collect sunlight required for making food.The ability to move plays a significant role in vital life processes of Euglena, such as the synthesis of food. Hope that helps ;)
5 0
3 years ago
You want to test the effect of sucralose on the growth of a plant. Design a study using the steps of the scientific method. What
Julli [10]

Answer:

  • The independent variable is the concentration of sucralose present in the plant.
  • The dependent variable is the growth rate of the plant.

Explanation:

The study designed through the steps of the scientific method would be done as follows:

Observation: Sucrose is a very important molecule for the development and growth of plants, based on which sucralose, which is formed from sucrose, can be important for the same factors.

Question: Can sucralose influence plant growth as well as sucrose?

Hypothesis: Sucralose may establish some influence on plant growth.

Experimentation: Select a number of seeds inoculated with sucralose molecules and select the same number of seeds that were not inoculated with anything. Provide the same type of soil and environmental factors so that seeds can grow in the same way. Weekly evaluate the growth of the plants generated by each seed for a certain period of time. After this period of time, measure the weight of the plants and their roots. Place the plant and root to dry in an oven and measure the weight of the plant and root once again.

Analysis of results: compare the average weekly growth of plants generated by inoculated seeds, with plants generated from uninoculated seeds. Compare the average weight of plants generated by seed inoculated before and after kiln-dried. Compare the weight average between plant roots generated by inoculated seeds before and after kiln-dried. Assess whether there was a significant difference between the means.

Conclusion: Using the data presented in the evaluation of the experiment, state whether the hypothesis developed provides true or false information.

<u><em>Note: it is important that the seeds are from the same species of plant.</em></u>

5 0
4 years ago
Read 2 more answers
A mutation may cause a change in the genotype of a trait? <br><br> True or false
AnnyKZ [126]

Answer:

true

Explanation:

mutations deal with chromosomal changes, and while they might not always be reflected in the phenotype.. the genotype does change

6 0
3 years ago
In guinea pigs, black fur color is dominant and brown fur color is recessive. Several matings between the same male black guinea
Fed [463]

Answer:

BB x BB

Explanation:

All of the offspring inherit traits from the dominant gene. This means there are no recessive present.

4 0
3 years ago
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